Patent · US Active

Determining distances

US9571973B1 · kind B1 · utility

1Cited by

0References

15Claims

0Family size

Assignee

NOKIA TECHNOLOGIES OY · FI

Inventors

Olli Alanen · Vantaa, FI
Janne Marin · Espoo, FI
Jarkko L. Kneckt · Campbell, US
Mika Kasslin · Espoo, FI

Key dates

Filing date	Sep 4, 2015
Grant date	Feb 14, 2017
Priority date	—
Expiry date	Sep 4, 2035

Classification

Technology area (CPC H)Electricity
CPC primaryH04W84/12
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

An apparatus and a method for determining distances between apparatuses are disclosed. The method in a first apparatus includes joining a network including a set of apparatuses; setting a first predetermined operating mode for the first apparatus after joining the network; receiving from at least one second apparatus belonging to the net-work a message indicating a support for a ranging service from the second apparatus. As a response to the message, a ranging process with the second apparatus is initiated. A second predetermined operating mode is set for the first apparatus after completing the ranging process with the second apparatus network; and a range-limited service discovery frame is broadcast.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.